William j



w. 1. KENNEDY.

FURNACE. APPLICATION FILED JULYI3, 1918.

om j J m R I m Mm 6 If nhv u J flm m m 47 n B m M P W WITNESSES ATTORNEYS W. .I. KENNEDY.

FURNACE.

APPLICATION FILED M113. 1910.

Patented June 24, 1919.

2 SHEETS-SHEET 2.

WITNESSES UNITED STATES Q PATENT OFFICE.

To all whom it may concern Be it known thatl, WILLIAM. JL; :KENw NEDY, a citizen of the United States, anda resident of Jersey City, in the countyof. Hudson and State ofNew Jersey, have in-h vented a new andImproved Furnace, of:

which the following is a full clear, and

} eXact desoription.- 1

This invention relates to furnaces and has a for an obj ect the provision of an improved construction which utilizesto a maximum extent the heating valueof the. fuel'by; causs ing anfabsorption of theheat and a transto a considerable me mission of the heat lum. 1

water is quickly heated and substantially super-heated as it leaves. the furnace so as: to be supplied to the radiators 9.113214 desirable temperature. 1

A still further object fromthe fire chamber for. heating andsuper heating the water .or steam in the upperv constructed 1 according 1 to. the present inven :tion. a

Fig.2 is a longitudinal vertical section through the furnace shown in Fig.1.:

Fig. is a transverse. sectional. View 1 through Fig. 2 approximately on line Fig. 4 is a section through Fig.1 on line Referring to the accompanying drawings by numerals 1 indicates an outer shell or casing which extends downwardlyto the ing 1 andtubes 12 atthetop. but maypass base 2, which base may ,b'eany desired ma terial The upper end of the casing or shell 1 is preferably rounded and is pro ing 1 eXcept that it does not extend down to the foundation2, butis boltedfor otherwise secured to the ring5, the securing bolts 1 Specification r Letters rat nt.

Another 1 object 1 in view 1 is ,to provide i heating furnace for} heating small or large? houses with steam or hot "water withthe parts so constructed and arrangedthat the of theinvention is '1 to provide a construction of furnace which will utilize fully the hot gases asthey' escape I WILLIAM J. KENNEDY, orgrunsnr crrir; New messy.

' FURNACE.

extendingthrough the casing l as shown in p Patented June 24, 1919. Application filed. J'u1y;13, 191s. Seria1No.244,772

By providing thep inner and outer: shell as just described is formed a water chamber 6 extending from the grate 7 to the extreme topof thefurnace and entirely around the furnace except atthe point ocoupied loy the 1 door- 8.1; A return p1pe-9 is connectedto the casing 1 near the lower part thereofsoas to discharge the return water intothe fur nacew-at: a {comparatively cool point. The

grate? may be any desired kind of a grate as for instance a stationary grateand the ashes allowed: to drop. into the ash pit 10 fromqwhich they be removed through door llniln the upper part of the inner casing 4: is provided a number of tubular heating inembers 12 which are closed at the inner endand open attheouter end so that waterfrom the. chamber 6 may freely pass 1? into theheating members 12 and leave therefrom. These heating members areprefer ablyexp'anded in place similar to an ordinary tubular boiler. though they may be fastened in any desired way. i l l From Fig.2 it will be seen that the tubularheating members 12 are in line with theplugs13, which plugsare desired tobe removed'when any of the heating members 12 aretobe renewedr It is. of course, un-

derstood that the openings closed by the various' plugs 53 are sufiiciently large to permit 1 the tubesl2l to pass. a

Arranged near the top of the boiler formed 1 byflthe casingsllmancl 4 and associate parts are. a number oftubular smoke members 13 .which areexpanded inplace or secured in any desired manner whereby the smoke and hot gases may not only freely pass between the" various tubes 12 on the sides of the castoithe exteriorcasingl and maintain the exteriorin a heated condition. A hood 14 l what maybe termed a smoke regulating plate 16, which is a ring and extends en tirely around the outer casing 1 and is provided with a number of apertures 17 through which the'smoke passes from the chamber 18 into the chamber 19 formed of plates 15 and 16. A regulating damper is provided for each of the apertures 17, saiddampers each having an arm 21 extending through -'the hood 14 so that the dampers may be properly moved and positioned to cause the,

smoke to move in the desired path. A smoke pipe 22 enters into the chamber 19 at 23, said smoke pipe being provided with a damper 2 1 if desired. In order to prevent the smoke and hot gases from moving to the point 23 alongthe shortest lines a division plate 25 extends from the top of the hood 14:- to plate 16 between the respective openings 17 as shown in Fig. 3 whereby-the smoke must pass into the various auxiliary chambers 18 and from thence downwardly into; the chamber 19 and from thence into the pipe 22; In order to have a substan tially equal amount of smoke passing through each of the chambers 18 a damper 20 farthest from the point 23 will be opened I to the greatest extent and the others gradually less and less, and the damper at the point opposite the pipe will be opened to the least extent. In starting a fire all the dampers may be opened completely in order to provide a proper strong draft, but after the fire has been properly started the dampers may then be regulated as described, or in any other desired manner in order to secure a maximum heat from the hot gases and smoke aswell as directly from the flame of and hot gases so that the steam in the upper thefire on the grate 7.

In the case of steam the hood 14 will cause the upper'partof the casings 1 aud t to be heated to anappreciable extent by the smoke partofthe furnace will becomesomewhat superheated and thereby pass out of the discharge pipe 26 in the best possible condition. Where hot water is used for carrying the heat the same desirable result will be seformed to close a comparatively large opening 27 which ordinarily is left closed while the auxiliary door 28 is opened when supplying coal. When it is desired to stoke the fire thevertically swinging door 29 is opened and the stirring member inserted;

When removing clinkers or 7 other obj ectionable matter the door 8 is opened and as the top of'the'grate 7 is 111' line with the bot- 1. A furnace comprising a body formed with a water chamber, means for supporting a fire in said body, a plurality of heat pipes extending through said water-chamber to a point exterior of the body --whereby the smoke and other burnt :products of combustion may pass from the fire 011 the fire supporting means through said water chamber, a hood surrounding the upper part of said body into which the burnt products of combustion are discharged, a smoke pipe connected with said hood at substantially the lowest point, and a plurality of spaced dampers for regulating the draft from the hood and the smoke pipe.

2. A furnace of the character described comprising a heating body formed to heat water, said heating body having openings through which the smoke will pass, a hood arranged over the upper part of said body and into which the smoke is discharged, a plurality of vertically arranged partitions positioned in the hood, a ring arranged at the bottom of said partitions, said ring having an aperture between each partition, a damper for closing said apertures, means forming a chamber beneath said ring, and a smoke pipe connected with saidchamber.

3. A furnace comprising a body formed with means for supporting a fire and a 1101- low section for heating water, said body being provided with a discharge passageway for the smoke and burnt products of combustion, a hood surrounding said body said hood being formed with a bottom, a ring arranged above said bottom whereby there is provided a chamber between the bottom and the ring, said ring being formed with a plurality of smoke outlets, a smoke pipe connected with said casing and opening into said chamber, a plurality of vertical division plates arranged in said hood extending fro-1n the top downward to said ring so as to divide the space inclosed by the hood into a plurality of compartments into which the smoke passes, there being a smoke outlet for each compartment, a damper for each of said smoke outlets in sald ring, and means for moving said damper back and forth over said smoke outlets so as to control the passage of smoke and burnt products of combustion therethrough.

4. A furnace comprising a body formed with a water chamber, means for supporting a fire in said body, a plurality of heat pipes extending through said water chamber so that the products of combustion may pass to a point exteriorly of the water chamber, a hood surrounding the upper part of said body adapted to receive said products of combustion, a plurality of divisaid openings, means connected with each sion plates arranged in said hood, a bottom of said shutters extending to a point extemember connecting said hood with said riorly of the hood for moving the shutter so 10 body, a ring provided With a plurality of as to open and close said openings, and a 5 openings spaced above said bottom whereby smoke discharge pipe connected with said there is provided a chamber between the chamber. ring and the bottom, a shutter for each of WILLIAM J. KENNEDY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

